| 摘要 |
This invention relates to a method of, a device and a protocol for performing ownership transfer of a change in a peer to peer network ( 30 ). The device or a peer can be a car, a garage, a video cassette recorder (VCR), a personal digital assistant (PDA), a mobile phone, a climate system, a television, a lamp, a coffee machine, a radio, a DVD player, a CD player, an information panel, a web tablet, a smart remote, an answering machine, a personal computer. Said method includes the steps of attempting, by means of a first device ( 31 ) to find a second device ( 32 ) which will accept responsibility for committing said change; transferring, by means of said first device, responsibility of committing the change to said second device and propagating the change to said second device, wherein a global commit status variable is further transferred to said second device and where said global commit status variable is maintained on said second device; setting, by means of said first device, a local commit status variable to "provisional" signifying that the device will act as if the global commit went through, wherein said first device will wait with setting the local commit status variable to 'void', signifying a real commit, until it gets confirmation that the global commit status variable is set to 'void' also, when said first device re-enters said network and checks the status of the global commit status variable; or setting, by means of said first device, the local commit status variable to 'void' signifying a real commit; and propagating, by means of said second device, said change to one or more devices ( 33, 34 ) for which said change is relevant, when responsibility of committing the change is received and accepted on said second device.
|
